CR1 Sputure test nearing interview

[Kivitan787 0]

Hi, my spouse and I are nearing his consular interview appointment date at San José, Costa Rica. We have all the necessary paperwork up to date, our only issue would be that during the medical exams, even though my spouse has a clear chest x-ray, the physician told him that they had to take 2 sputure tests. The results of the first one came negative after a week. But the second results take a whole month, and the interview date is 2-4 days before the final results. In the physician office they told my spouse to not cancel the interview or move the date since everything looked alright and the date was so closed. But I am worried that this may cause them to reschedule the interview last minute and make this whole ordeal take longer. 
 

Should I worry or just let this flow?